Diederik Stapel – eminent “pop star” psychologist and blatant fraudster  

Overview Stapel was a controversial Dutch psychology professor, very well-known because of his frequent media presence. He produced many eye catching social psychology papers that attracted media attention. One of his many headline-making papers purported to show that an untidy environment increased people’s racist tendencies. From 2006 onwards he was based at Tilburg University where…

Fruits and vegetables: should it be 5,7, or even 10-a-day?

Background Generations of parents have encouraged their children to eat their vegetables. There is an almost intuitive assumption that plenty of vegetables and fruit is an important part a healthy diet. In the 1956 Four Food Group Plan, the cornerstone of dietary guidance in the USA for almost forty years, the target was at least…

Update on vitamin D supplements or food fortification

Background In a recent post I advocated that a common UK food like milk or bread/flour should be fortified with vitamin D. Large number of the British population are classified as vitamin D deficient and clinical cases of rickets have been rising albeit from a very low base. There is robust evidence that increased vitamin D…

Do children need more protein than adults?

The answer to the title question depends upon how you define “need”. There are three ways of expressing the needs of individuals for protein – the absolute need in grams per day (adults need more) – the relative need in grams per kg of body weight per day (children need more) – the protein level…